Add the olive oil to a large pot and cook the onions and garlic over a medium heat and cook the onions and garlic until tender.

After a few minutes, add the vegetable stock and potatoes to the pot.

Cover the pot and bring to a boil.

Reduce the heat and let the mixture simmer until the potatoes are tender - this should be about 15 minutes.

Add the broccoli and thyme, stir the mixture, cover with a lid and leave to cook, on a medium heat, until the broccoli is tender - this should take around 5 minutes, as we don't want to overcook the broccoli.

Purée the soup with a food blender or an immersion blender (stick blender) to get a soupy consistency.

Season with salt and pepper.

Serve!